/**
 * Quantum Tutor AI - Shared Chat Styles v1.0
 * Common styles for shared chat pages
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* CSS Variables for theming */
:root {
    --text-primary: hsl(194, 80%, 15%);
    --text-secondary: hsl(194, 60%, 30%);
    --bg-primary: hsl(194, 30%, 97%);
    --bg-card: hsl(194, 25%, 94%);
    --bg-user: hsl(194, 25%, 88%);
    --border-color: hsl(194, 25%, 80%);
    --link-color: hsl(194, 75%, 25%);
    --link-hover: hsl(194, 75%, 35%);
    --accent-color: hsl(194, 75%, 25%);
    --accent-hover: hsl(194, 75%, 35%);
    --code-bg: hsl(194, 20%, 90%);
    --table-header: hsl(194, 25%, 88%);
    --table-stripe: hsl(194, 15%, 96%);
    --table-hover: hsl(194, 20%, 93%);
}

/* Base Styles */
body { 
    font-family: 'Inter', sans-serif; 
    line-height: 1.6; 
    max-width: 800px; 
    margin: 0 auto; 
    padding: 20px 15px; 
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

/* Links */
a {
    color: var(--link-color);
    text-decoration: none;
}
a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

/* Header */
.header { 
    line-height: 1rem;
    text-align: center;
    margin-bottom: 20px; 
    padding-bottom: 12px; 
    border-bottom: 1px solid var(--border-color);
    opacity: 0;
    animation: fadeInUp 0.3s ease-out 0.05s forwards;
}

.header img {
    border: none;
    max-width: 50%;
    margin-top: 30px;
}

/* Messages */
.message { 
    padding: 10px 0; 
    margin-bottom: 20px; 
    border-radius: 8px; 
    opacity: 0;
}

.user { 
    background-color: transparent; 
    margin-left: 0; 
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.user-bubble {
    background-color: var(--bg-user);
    padding: 10px 20px;
    border-radius: 18px;
    display: inline-block;
    max-width: 85%;
    text-align: left;
    align-self: flex-end;
    padding-bottom: 0px !important;
}

.assistant { 
    background-color: transparent; 
    margin-right: 0; 
}

.assistant-bubble {
    background-color: var(--bg-card);
    padding: 10px 20px;
    border-radius: 18px;
    display: inline-block;
    max-width: 90%;
    padding-bottom: 0px !important;
    overflow-x: auto;
}

.message-author { 
    font-weight: bold; 
    margin-bottom: 5px; 
    color: var(--text-primary);
    font-size: 1em;
}

.message-content { 
    white-space: normal; 
    font-size: 0.95em;
    visibility: hidden;
    overflow-x: visible;
}

.message-content p { 
    margin-bottom: 0.75em !important;
    margin-top: 0 !important;
}

/* Start Button */
.start-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    margin-top: 10px;
    text-align: center;
    transition: background-color 0.2s;
    text-decoration: none;
    margin-bottom: 12px;
}

.start-button:hover {
    background-color: var(--accent-hover) !important;
    color: white !important;
    text-decoration: none;
}

/* Code and Pre */
pre { 
    background-color: var(--code-bg);
    padding: 10px; 
    border-radius: 5px; 
    overflow-x: auto; 
    font-size: 13px;
    font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace;
    border: 1px solid var(--border-color);
    white-space: pre;
    margin: 0.75em 0;
}

code { 
    font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace; 
    background-color: var(--code-bg);
    padding: 2px 4px; 
    border-radius: 3px; 
    font-size: 90%; 
}

/* Images */
img { 
    display: block;
    max-width: min(100%, 300px); 
    height: auto; 
    border-radius: 5px; 
    margin: auto;
    border: 1px solid var(--border-color);
}

/* Image placeholders in user bubbles should not take full width */
.user-bubble > div[style*="aspect-ratio"] {
    width: auto !important;
}

/* Headers */
h1 { 
    color: var(--text-primary);
    font-size: 1.5em;
}

.message-content h1, .message-content h2, .message-content h3, 
.message-content h4, .message-content h5, .message-content h6 { 
    color: var(--text-primary);
    margin-top: 0.75em;
    margin-bottom: 0.4em;
    font-size: 1.1em;
}
.message-content h1 { font-size: 1.3em; }
.message-content h2 { font-size: 1.2em; }
.message-content h3 { font-size: 1.1em; }
.message-content h4, .message-content h5, .message-content h6 { font-size: 1em; }

/* Lists */
.message-content ul, .message-content ol { 
    padding-left: 1.5em;
    margin: 0.4em 0;
}

/* Blockquotes */
.message-content blockquote { 
    border-left: 3px solid var(--border-color);
    padding-left: 0.75em;
    margin-left: 0;
    color: var(--text-secondary);
}

/* Footer */
.footer { 
    margin-top: 30px; 
    text-align: center; 
    font-size: 0.85em; 
    color: var(--text-secondary);
    padding-top: 15px; 
    border-top: 1px solid var(--border-color);
    opacity: 0;
    animation: fadeInUp 0.3s ease-out 0.15s forwards;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Table Styles */
.message-content table { 
    display: block;
    table-layout: auto;
    border-collapse: collapse;
    width: 100%;
    max-width: 100%;
    margin: 0.75em 0;
    font-size: 0.9em;
    border: none;
    border-radius: 5px;
    overflow-x: auto;
    overflow-y: visible;
    white-space: nowrap;
    scrollbar-width: auto;
    scrollbar-color: rgba(0, 0, 0, 0.4) rgba(0, 0, 0, 0.08);
}

.message-content table thead,
.message-content table tbody {
    display: table-header-group;
}

.message-content table tbody {
    display: table-row-group;
}

.message-content table tr {
    display: table-row;
}

.message-content table td,
.message-content table th {
    display: table-cell;
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
    box-sizing: border-box;
}

.message-content table th { 
    background-color: var(--table-header);
    font-weight: 600;
}

.message-content table tr:nth-child(even) {
    background-color: var(--table-stripe);
}

.message-content table tr:hover {
    background-color: var(--table-hover);
}

/* Custom scrollbar for WebKit browsers */
.message-content table::-webkit-scrollbar {
    height: 8px;
}

.message-content table::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.08);
    border-radius: 4px;
}

.message-content table::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.4);
    border-radius: 4px;
    border: 2px solid transparent;
    background-clip: content-box;
}

.message-content table::-webkit-scrollbar-thumb:hover {
    background-color: rgba(0, 0, 0, 0.6);
}

/* KaTeX specific styles */
.katex-display { 
    margin: 0.75em 0;
    overflow-x: auto;
    overflow-y: hidden;
}

.katex-html {
    white-space: nowrap;
}

.message-content table td .katex {
    display: inline-block;
    white-space: nowrap;
}

.message-content table th {
    white-space: nowrap;
}

/* Modal Styles */
#share-modal-overlay {
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 50;
    width: 90%;
    max-width: 32rem;
    transform: translate(-50%, -50%);
    display: grid;
    gap: 0.75rem;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    padding: 1.25rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -4px rgba(0,0,0,0.1);
    border-radius: 0.75rem;
    animation: fadeIn 0.2s ease-out;
}

#share-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 49;
    animation: fadeIn 0.15s ease-out;
}

#share-url {
    background: var(--bg-card);
    padding: 0.6rem;
    border-radius: 0.375rem;
    overflow-x: auto;
    word-break: break-all;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    font-family: source-code-pro,Menlo,Monaco,Consolas,'Courier New',monospace;
    margin: 0.4rem 0;
    font-size: 0.8125rem;
}

#share-copy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    white-space: nowrap;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: 'Inter',sans-serif;
    transition: background-color 0.15s,color 0.15s;
    background: var(--accent-color);
    color: white;
    border: none;
    height: 2.25rem;
    padding: 0 0.875rem;
    cursor: pointer;
}

#share-modal-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    white-space: nowrap;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: 'Inter',sans-serif;
    transition: background-color 0.15s,color 0.15s;
    border: 1px solid var(--border-color);
    background: var(--bg-user);
    color: var(--text-primary);
    height: 2.25rem;
    padding: 0 0.875rem;
    cursor: pointer;
}

#share-close-x {
    position: absolute;
    right: 0.75rem;
    top: 0.75rem;
    border-radius: 0.125rem;
    opacity: 0.7;
    transition: opacity 0.15s;
    cursor: pointer;
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

#share-copy:hover {
    background: var(--accent-hover) !important;
}

#share-modal-close:hover {
    background: var(--code-bg) !important;
}

#share-close-x:hover {
    opacity: 1 !important;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Mobile Styles */
@media (max-width: 600px) {
    body { padding: 12px 10px; }
    
    .message { padding: 8px 0; margin-bottom: 15px; }
    
    .user-bubble, .assistant-bubble { 
        padding: 10px 12px; 
        border-radius: 16px;
        font-size: 0.95em;
        padding-bottom: 0px !important;
        overflow-x: visible;
    }
    
    .message-author { font-size: 0.9em; margin-bottom: 3px; }
    
    pre { 
        font-size: 12px; 
        padding: 8px; 
        scrollbar-width: thin;
        scrollbar-color: var(--border-color) transparent;
    }
    
    pre::-webkit-scrollbar {
        height: 6px;
    }
    
    pre::-webkit-scrollbar-track {
        background: transparent;
    }
    
    pre::-webkit-scrollbar-thumb {
        background-color: var(--border-color);
        border-radius: 3px;
    }
    
    .message-content table { 
        font-size: 0.75em;
        margin: 12px 0;
        border-radius: 6px;
    }

    .message-content table td .katex {
        white-space: nowrap !important;
        display: inline-block !important;
    }

    .message-content table th, .message-content table td { 
        padding: 6px 8px;
        vertical-align: middle;
        text-align: center;
        white-space: nowrap;
        box-sizing: border-box;
        min-width: 60px;
    }
    
    #share-modal-overlay { 
        width: 85%; 
        padding: 1rem;
        gap: 0.5rem;
    }
    
    #share-url { font-size: 0.75rem; padding: 0.5rem; }
    
    #share-copy, #share-modal-close { 
        height: 2rem; 
        padding: 0 0.75rem;
        font-size: 0.75rem;
    }
    
    .header { margin-bottom: 15px; padding-bottom: 10px; }
    .footer { margin-top: 20px; padding-top: 10px; }

    /* Mobile KaTeX scaling */
    .katex-display {
        font-size: 0.95em;
        max-width: 100%;
        overflow-x: auto;
        overflow-y: hidden;
        transform-origin: left top;
    }
    
    .katex {
        font-size: 0.95em;
    }
    
    .user-bubble {
        overflow-x: visible;
        word-wrap: break-word;
    }
    
    .assistant-bubble {
        overflow-x: auto;
        word-wrap: break-word;
    }
}